"The necessary formulation auxiliaries such as inert materials, surfactants, solvents and other additives are also known and described, for example, in: Watkins, Handbook of Insecticide Dust Diluents and Carriers\", 2nd Ed., Darland Books, Caldwell N.J.; H.v. Olphen, Introduction to Clay Colloid Chemistry; 2nd Ed., j." . . . . .